WO2014035112A1 - 3차원 초음파 진단기에서 스캔 영상 판별 장치 및 방법 - Google Patents
3차원 초음파 진단기에서 스캔 영상 판별 장치 및 방법 Download PDFInfo
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- WO2014035112A1 WO2014035112A1 PCT/KR2013/007661 KR2013007661W WO2014035112A1 WO 2014035112 A1 WO2014035112 A1 WO 2014035112A1 KR 2013007661 W KR2013007661 W KR 2013007661W WO 2014035112 A1 WO2014035112 A1 WO 2014035112A1
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- 239000000523 sample Substances 0.000 claims description 50
- 238000012545 processing Methods 0.000 claims description 21
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- 238000001514 detection method Methods 0.000 claims description 3
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- 230000005856 abnormality Effects 0.000 claims 1
- 206010044565 Tremor Diseases 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 238000012935 Averaging Methods 0.000 description 1
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Definitions
- the present invention relates to an apparatus and method for determining a scanned image in a three-dimensional ultrasound diagnostic apparatus.
- the ultrasonic imaging device detects the reflected wave from the human body after firing an ultrasonic wave on the human body, and displays an image on the screen by appropriately processing the signal, so that the image of the internal tissue can be observed in real time without having to directly incision the body. Because of this, it is widely used in the medical field.
- Ultrasonic imaging systems are changing from analog to digital, 2D ultrasound diagnostics to 3D and 4D ultrasound diagnostics. They provide stereoscopic images in real time and are easy to remotely diagnose via volume image networks at remote locations.
- the 3D data that is inspected in the field is transmitted to a large hospital or a hospital with a medical staff who can diagnose ultrasound images. If the image of the transmitted data is not clear, the time and expense must be taken again. There is a problem.
- the present invention devised to solve the problems of the prior art as described above, when scanning a long-term portion of the patient using a three-dimensional ultrasound diagnostics, whether the image is shaken or covered by the blurring reading algorithm and image check algorithm
- the purpose of this is to instruct the re-photographing to determine if a wrong scan is performed, and to transmit a clear three-dimensional volume image to the examination site.
- an object of the present invention is to distinguish and correct anomalies through a blurring determination algorithm, a blind reading algorithm, and a three-axis acceleration sensor in the three-dimensional ultrasonic probe of the three-dimensional ultrasound diagnostic apparatus.
- the object of the present invention is the first step of the processor to determine the position of the human body measurement of the probe part, the second step of determining the measurement angle of the probe part, the third step of determining the shaking of the hand or the human body holding the probe part, three-dimensional Four steps of determining noise or blurring of the volume image and five steps of determining whether all the organs to be measured have been scanned are achieved.
- another object of the present invention is to create a three-dimensional volume image by combining the scan unit for generating a two-dimensional volume image of the inside of the human body using the ultrasonic signal, the two-dimensional volume image obtained through the scanning unit, the three-dimensional volume A processing unit for determining whether the image is a normal three-dimensional volume image, a database unit for storing the three-dimensional volume image made by the processing unit, and a warning sound, a warning light, or a warning message when the data determined by the processing unit is not suitable. It is achieved by a beep output that informs you using any one or more of these.
- the scan image discrimination system uses a blurring readout algorithm and an image check algorithm to determine a portion where the image is shaken or hidden so that a sonographer using ultrasound can scan more easily. It is effective.
- the present invention can easily correct the scanned image using a blurring determination algorithm, a blind reading algorithm, and a three-axis acceleration sensor in the three-dimensional ultrasonic probe inside the diagnostic device.
- FIG. 1 is a flowchart for determining a scan image in a three-dimensional ultrasound diagnostic apparatus according to the present invention
- FIG. 2 is a block diagram of a three-dimensional ultrasound diagnostic apparatus according to the present invention.
- FIG. 5 is a hidden three-dimensional volume image in accordance with the present invention.
- FIG. 1 is a flowchart illustrating a scan image discrimination in a 3D ultrasound diagnostic apparatus according to the present invention.
- the organ of the human body is scanned using a three-dimensional ultrasound diagnostic apparatus, and the scanned volume image is shaken or scanned at an incorrect angle to determine that the organ is hidden by rescanning the sonographer.
- This section describes how to notify one or more of the beeps, warning lights, or warning messages.
- the sensor detects whether the probe is suitable for the measurement position [S200] by using the measured position data by installing a 3-axis acceleration sensor or a 3-point spatial position sensor in the probe. And if the measurement position is not suitable by the warning sound output unit 400 will notify any one or more of the warning sound, warning lights or warning messages.
- the sonographer scans the corresponding area again.
- the measurement angle of the probe is determined by comparing the volume image value of the tip of the probe and the end of the organ to be measured [S300].
- the measuring angle of the probe part is determined because all the organs to be measured are not visible or partly hidden due to other organs. Since the measuring angle of the probe is small, all of the organs to be measured are not visible, or when the measuring angle is large and other organs overlap, the warning sound output unit 400 notifies any one or more of a warning sound, a warning light, or a warning message.
- both the position and the angle of the probe is suitable, it is determined whether the shaking of the hand holding the probe and the movement of the patient [S400].
- the vibration of the sonographer's hand holding the probe is determined by detecting a sensing value measured by the sensor by installing a 3-axis acceleration sensor or a gyro sensor inside the probe, and if it is above a predetermined value, the vibration is determined. You will be notified of one or more of the beeps, warning lights or warning messages.
- the shaking of the patient is installed at least one of the three-axis acceleration sensor or gyro sensor on the patient examination bed to determine the sensing value measured by the sensor is determined to be determined by the shaking if the predetermined value or more and the alarm sound output 400 One or more warning lights, or warning messages.
- noise or blurring detection of the scanned 3D volume image is performed [S500].
- Lee filter, averaging filter, frost filter, enhanced frost filter, etc. are used as a filter used to remove the noise of the volume image in the ultrasonic diagnostic apparatus.
- blurring is detected by determining the quality and contrast of the image using a blurring algorithm.
- the warning sound output unit 400 will notify one or more of the warning sound, warning light, or warning message.
- This step compares the scanned three-dimensional volume image with the standard three-dimensional volume image of each organ stored in the database 300 in the three-dimensional ultrasound diagnostic system to determine whether the target organ has been scanned if the sonographer wants to scan a particular organ. Automatically determine if form and shape are similar. If the standard three-dimensional volume image stored in the database 300 and the scanned three-dimensional volume image is different, the beep output unit 400 notifies any one or more of the beep, warning light or warning message, if the image is the same scan An image is displayed or stored in the database [S800].
- the stored three-dimensional volume image is transmitted to the data transmission unit 600 [S900] and the data transmission unit 600 is a large hospital capable of diagnosis or a hospital having a doctor who can make a diagnosis. Alternatively, it can be sent using PACS communication or stored on a CD.
- the warning sound output unit 400 determines the position error, the measurement angle error in the second stage, the vibration determination in the third stage, the noise or blurring phenomenon of the three-dimensional volume image in the fourth stage, If an error occurs at any one of the stages of determining whether all organs have been scanned, one or more of the beeps, warning lights or warning messages will be output.
- the processor 200 determines the first position of the human body measurement position of the probe, the second stage of determining the measurement angle of the probe, the third stage of judging the shaking of the hand or the human body holding the probe, noise of the three-dimensional volume image, Step 4 of determining the blurring phenomenon and step 5 of determining whether all the organs to be measured have been scanned can be changed in the order of execution.
- the apparatus for determining a scan image of a 3D ultrasound diagnostic apparatus includes a scan unit 100 and a 2D acquired through the scan unit 100 to generate a 2D volume image inside the human body using an ultrasound signal.
- the processing unit 200 for determining whether the three-dimensional volume image is a normal three-dimensional volume image, the database unit 300 for storing the three-dimensional volume image created by the processing unit, the processing unit When the data determined by the user is not suitable, a warning sound output unit 400 for notifying by using any one or more of the warning sound, warning light or warning message, the display unit 500 showing the three-dimensional data generated by the processing unit 200 And a data transmission unit 600 for transmitting the data generated by the processing unit 200 to the diagnostic hospital through wired / wireless communication, CD, or PACS system. Than it has done.
- the scan unit 100 includes a probe that scans an organ inside the human body using an ultrasonic signal and generates a volume image.
- the probe unit includes a 3-axis acceleration sensor and a gyro sensor to determine the shaking of the hand holding the probe. It is made to include any one or more, and when a shake is detected to transmit a detection signal to the processing unit 200.
- the processing unit 200 includes an image discrimination algorithm and a blurring algorithm for analyzing the volume image scanned by the probe and finding a shake, a masked image, or a part obscured by another organ according to the position or angle of the probe. have.
- the image discrimination algorithm finds the blurring image through the ratio difference between the high frequency region and the low frequency region through frequency analysis of the 3D volume image.
- the probe unit generates the two-dimensional volume image inside the human body by using an ultrasonic signal, detects the shake of the probe part using at least one of a three-axis acceleration sensor and a gyro sensor, and detects motion in the processor if there is a shake. Send a signal.
- the processor 200 compares the volume image values of the tip of the probe and the end of the organ to be measured to determine whether the position of the probe is accurately positioned, and the 3-axis acceleration sensor to determine the shaking of the hand holding the probe.
- the gyro sensor is embedded in the probe and the sensing value is analyzed to determine the shaking.
- the shaking of the patient receiving the treatment is to install a three-axis acceleration sensor or gyro sensor in the patient's examination bed, and to determine the shaking by analyzing the sensing value from the sensor installed.
- the processor 200 compares the quality and contrast of the 3D volume image using a blurring algorithm to determine the blurring of the 3D volume image, and the standard 3D of each organ stored in the database unit 300. It compares the volume image and the examined three-dimensional volume image to determine whether the shape is similar.
- the processor 200 uses an image discrimination algorithm for detecting a portion of the 3D volume image, which is caused by a shake, a masked image, or other organs, which are generated according to the position or angle of the probe.
- the image discrimination algorithm is a 3D volume image.
- the frequency is determined by the difference in ratio between the high frequency region and the low frequency region through frequency analysis.
- the processor 200 selects the sharpest 3D volume image when there are a plurality of scanned 3D volume images of the same region, and transmits the selected 3D volume image to the display unit 500, and the database unit 600. Will be stored in.
- the stored 3D volume image is compressed using an image compression algorithm, and the compressed 3D volume image is transmitted to the data transmitter 600.
- a typical image compression algorithm is a wavelet. Wavelet transform is suitable for image processing because it reflects the fact that when a person looks at an object, it first grasps the overall outline and concentrates on the details. In the case of conventional JPEG image compression technology, block loss such as Block artifact occurs when compression is performed at high compression rate. In the case of wavelet compression, since the entire image is compressed, the problem caused by JPEG image compression can be fundamentally solved. .
- wavelet compression In addition to wavelet compression, various compression methods can be used for the compression of 3D ultrasonic volume images.
- the wavelet compression method is used to select whether to reduce and compress one part of contrast and sharpness. Use the method of compression.
- the database 500 stores the three-dimensional volume image combined by the processing unit 200 and stores the standard three-dimensional volume image for each organ.
- the processor 200 compares the standard 3D volume image stored in the database unit 500 with the scanned 3D volume image to determine whether the shape and shape are similar.
- the warning sound output unit 400 may notify a user by using one or more of a warning sound, a warning light, or a warning message when an incorrect volume image is detected by the processor 200, and the sonographer retakes the image when the notification is recognized.
- FIG. 3 to 5 relate to a three-dimensional volume image scanned by a three-dimensional ultrasound diagnostic apparatus
- FIG. 3 is a normal three-dimensional volume image
- FIG. 4 is a blurred three-dimensional volume image
- FIG. Figure shows a 3D volume image.
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Abstract
Description
Claims (27)
- 3차원 원격 초음파 진단기에 있어서,3차원 볼륨 이미지를 원격지로 전송 하기전에 상기 3차원 볼륨 이미지의 영상 품질을 판별하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 1항에 있어서,상기 3차원 원격 초음파 진단기의 스캔 영상 판별 방법은,처리부가 탐촉부의 인체 측정 위치를 판단하는 제1단계;상기 탐촉부의 측정 각도를 판단하는 제2단계;상기 탐촉부를 잡고 있는 손의 떨림이나 인체의 떨림을 판단하는 제3단계;3차원 볼륨 이미지의 노이즈 또는 블러링 현상을 판단하는 제4단계; 및측정하고자 하는 장기가 모두 스캔 되었는지 판별하는 제5단계를 포함하여 이루어진 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제1단계는 탐촉부 내에 3축 가속도 센서, 3포인트 공간 위치 감지 센서 및 자이로 센서 중 하나 이상을 설치하여 측정된 위치데이터를 이용하여 탐촉부의 인체 측정 위치를 판단하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제2단계는 상기 탐촉부의 끝과 상기 측정하고자 하는 장기 끝의 볼륨 이미지 값을 비교하여 판단하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제3단계에서 손의 떨림은 상기 탐촉부 내에 포함된 3축 가속도 센서 또는 자이로 센서 중 어느 하나 이상을 이용하여 판단하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제3단계에서 인체의 떨림은 환자용 진찰 침대에 3축 가속도 센서 또는 자이로 센서 중 어느 하나 이상을 설치하고, 상기 센서를 통해 인체의 떨림을 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제4단계에서 상기 3차원 볼륨 이미지의 상기 블러링을 판별하는 방법은 상기 3차원 볼륨 이미지에 대한 블러링 알고리즘을 수행하여 이미지의 퀄리티와 콘트라스트를 이용하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제5단계는 상기 3차원 초음파 진단기 내의 데이터 베이스부에 저장된 각 장기들의 표준 3차원 볼륨 이미지와 검진한 상기 3차원 볼륨 이미지를 비교하여 형태가 유사한지를 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제1단계의 위치오류, 상기 제2단계의 측정각도 오류, 상기 제3단계의 상기 탐촉부의 떨림 판단, 상기 제4단계의 상기 3차원 볼륨 이미지의 노이즈 또는 블러링 현상을 판단, 상기 제5단계 측정하고자 하는 장기가 모두 스캔 되었는지를 판별하는 것 중 어느 한 단계에서 이상이 발생하는 경우 경고음 출력부에서 경고음, 경고등 또는 경고 메세지중에서 하나 이상을 출력하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 제 2항에 있어서,상기 제1내지 제5단계의 수행 순서는 변경 가능한 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 방법.
- 3차원 초음파 진단기의 스캔 영상 판별 장치에 있어서,초음파 신호를 이용하여 인체 내부의 2차원 볼륨 이미지를 생성하는 스캔부;상기 스캔부를 통해 획득한 2차원 볼륨 이미지를 조합하여 3차원 볼륨 이미지로 만들고, 상기 3차원 볼륨 이미지가 정상적인 3차원 볼륨 이미지인지를 판별하는 처리부;상기 처리부에 의해 만들어진 상기 3차원 볼륨 이미지를 저장하기 위한 데이터베이스부; 및상기 처리부에 의해 판별한 데이터가 적합하지 않을 때, 경고음, 경고등 또는 경고 메시지 중 어느 하나 이상을 이용하여 알려주는 경고음 출력부를 포함하여 이루어지는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부를 통해 만들어진 상기 3차원 볼륨 이미지를 보여주는 디스플레이부; 및상기 처리부에 의해 만들어진 상기 3차원 볼륨 이미지를 유무선 통신, CD 또는 PACS 시스템 중 어느 하나 이상을 통해 진단병원으로 전송하기 위한 데이터 전송부를 더 포함하여 이루어지는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 스캔부는 탐촉부를 포함하고, 상기 탐촉부는 3축 가속도 센서, 3포인트 공간 위치 감지 센서 및 자이로 센서 중 어느 하나 이상을 포함하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 탐촉부는 초음파 신호를 이용하여 인체 내부의 상기 2차원 볼륨 이미지를 생성하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 13항에 있어서,상기 탐촉부의 3축 가속도 센서 및 자이로 센서 중 어느 하나 이상을 이용하여 상기 탐촉부의 흔들림을 감지하고, 흔들림이 있는 경우 상기 처리부에 움직임 감지 신호를 전송하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 상기 탐촉부의 끝과 측정하고자 하는 장기 끝의 볼륨 이미지 값을 비교하여 탐촉부의 위치를 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 상기 탐촉부에 내장되어 있는 3축 가속도 센서 또는 자이로 센서를 이용하여 탐촉부를 잡고 있는 손의 떨림을 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 환자용 진찰 침대 설치되어 있는 3축 가속도 센서 또는 자이로 센서를 통해 환자가 움직일 경우 발생하는 센싱값을 입력받고 인체의 떨림을 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 블러링 알고리즘을 이용하여 상기 3차원 볼륨 이미지의 퀄리티와 콘트라스트를 비교하여 상기 3차원 볼륨 이미지의 블러링을 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 상기 데이터 베이스부에 저장된 각 장기들의 표준 3차원 볼륨 이미지와 검진한 3차원 볼륨 이미지를 비교하여 형태가 유사한지를 판별하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 상기 3차원 볼륨 이미지를 분석하여 탐촉부의 위치 또는 각도에 따라 발생하는 흔들림, 가려진 이미지 또는 다른 장기에 의해 가려진 부분을 찾아내기 위한 이미지 판별 알고리즘을 포함하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 21항에 있어서,상기 이미지 판별 알고리즘은 3차원 볼륨 이미지를 주파수 분석을 통해 고주파 영역과 저주파 영역의 비율 차이를 통해 분석하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 스캔된 동일한 부위의 3차원 볼륨 이미지가 복수개 존재하는 경우, 가장 선명한 3차원 볼륨 이미지를 선택하고, 선택된 상기 3차원 볼륨 이미지를 디스플레이부에 전송하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 처리부는 영상 압축 알고리즘을 이용하여 상기 3차원 볼륨 이미지를 압축하여 상기 데이터 전송부로 이미지를 보내는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 24항에 있어서,상기 영상 압축 알고리즘은 웨이블릿(Wavelet) 알고리즘을 사용하여 콘트라스트(contrast)와 샤프니스(sharpness) 중 어느 한 부분을 감소하여 압축할 것인지 선택할 수 있는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 데이터베이스부는 상기 처리부에 의해 결합된 상기 3차원 볼륨 이미지를 저장하고, 각 장기별 표준 3차원 볼륨 이미지를 저장하는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
- 제 11항에 있어서,상기 경고음 출력부는 상기 처리부에 의해 잘못된 이미지가 검출되었을 경우 경고음, 경고등 또는 경고메시지 중 어느 하나 이상을 이용하여 알려주는 것을 특징으로 하는 3차원 초음파 진단기에서 스캔 영상 판별 장치.
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